在您的安装管理器中，选中联系所有更新站点..."，然后重试.由于 EMF 来自与 M2Eclipse 不同的更新站点，因此如果无法检查所有更新站点的所需组件，则无法安装 M2Eclipse.

In your install manager, check "Contact all updates sites..." and try again. Since EMF comes from a different update site than M2Eclipse, M2Eclipse cannot be installed without the ability to check all update sites for required components.

更新！

自 Eclipse 3.7 (Indigo) 起，m2e 现在托管在 eclipse.org 上.要安装它，您只需要使用默认的 Eclipse 更新站点:

Since Eclipse 3.7 (Indigo), m2e is now hosted at eclipse.org. To install it, you just need to use the default Eclipse update site:

• http://download.eclipse.org/releases/kepler
• http://download.eclipse.org/releases/juno
• http://download.eclipse.org/releases/indigo
• 等等